Anyone else running a small wind turbine alongside solar on their cabin? Worth it or just headache?

Finally pulled the trigger on a 400W wind turbine last autumn to pair with my existing 400W of solar panels on my off-grid cabin up in the Scottish Borders. The idea was that when the sun disappears for days on end (which it absolutely does up here from October through February), the wind would pick up the slack. In theory it made perfect sense.

In practice it's been... mixed. The turbine is a Pikasola 400W on a 4.5 metre tilt-up mast I put together myself. On a decent blustery day it'll push 150-180W sustained into my 200Ah LiFePO4 bank, which is genuinely brilliant. But I've had two charge controller compatibility headaches and the noise on really gusty nights is more than I expected — not unbearable, but noticeable through the cabin walls.

The solar side is dead simple by comparison — 400W of panels, a Victron 100/30 MPPT, done. The wind turbine has needed far more fiddling and I'm still not 100% sure I've got the dump load resistor sized correctly. Currently running a 300W water heating element as the dump load which seems to cope, but on big wind days the controller gets warm enough that I've started to worry a little.

Has anyone else gone the hybrid route on a small cabin setup? Did you find wind genuinely worthwhile for winter resilience, or would you have just chucked more panels and a bigger battery at the problem instead? Keen to hear from folk who've actually lived with it for a full year or more.

Reply by Squib30:

@WhatsAFuse4 Great timing actually, wind and solar complement each other brilliantly in Scotland - you're often getting your best wind on those grey overcast days when the panels are barely ticking over. That's the real beauty of a hybrid setup.

One thing worth checking is whether your charge controller can handle both inputs simultaneously without them fighting each other. Depending on your setup you might need a dedicated wind controller feeding into the same battery bank separately rather than combining them before the controller. Learned that the hard way myself!

Also curious what turbine you went with? Some of the cheaper 400W units are quite optimistic with their power curves. The cut-in wind speed matters enormously up in the Borders where you'll get plenty of moderate breeze rather than constant howling gales. Would love to hear how it's performed through winter.

@WhatsAFuse4 oh this is exactly what I did with my shepherd's hut two winters ago — solar was useless November through January, just sitting there looking decorative. Added a little 400W turbine (ended up going with a Rutland after much agonising) and honestly the difference was night and day.

The headache part though? The charge controller. Mixing wind and solar inputs properly took me an embarrassing amount of head-scratching before I landed on a Victron setup that actually played nicely with everything.

One thing nobody warned me about — noise. Fine in an open field, but if your cabin is close by, certain wind speeds produce this low hum that burrows into your skull at 2am. Worth checking the turbine's cut-in speed too, some are genuinely useless below 3m/s.